As a family of 4 we all share our location, it’s not like we check it all the time but it certainly comes in handy, just a few examples
I have an older teen who is just starting to socialise at night, I just map to her location to collect her rather than faffing with sat nav, she also then knows when I am a minute or two away so can be ready waiting for me.
I ride horses, always on my own, I like my family to know where I am should I have an accident (I have fallen before and been knocked out, thankfully I was with someone but it’s made me very aware), same applies for my husband who mountain bikes.
we go to music festivals and will split up to watch different bands, you can’t rely on your phone calls or texts going through but GPS always seems to work so we can easily find each other
3 years ago when my daughter was 13 I got a voicemail from school at 10.30 to ask why she was absent. She had left the house at 8am to go to school. I tried to call the school back, no answer - without tracking I would of left work and headed straight to the school but I could clearly see her last known location was school at 8.45am (when she turned the phone off as per school rules), turns out they had marked her incorrectly. It ended up taking an hour to get hold of someone in the school office to clear things up but it saved me panicking
and on a more light hearted note I’ve been out on long dog walks when the weather has really turned nasty, I have come home soaked through to a nice surprise of a warmed towel and my fav fleece pjs, a cup of coffee, breakfast on the go and a DH standing at the door ready to take over the task of cleaning the dogs so I can get warm and dry myself
I don’t feel I am loosing any independence and certainly don’t feel watched. For the younger generation especially it seems the norm as on one of the apps (I think it’s Snapchat ?) they can all see where their friends are. That to me is a step too far but for my immediate family I have no issue with location sharing, if they want to stalk me they can but given my life is rather dull I very much doubt they do!